I personally think USD$100 for e-Gate does not worth the money.
If you are US citizen and you have global entry, MAYBE you can apply for APEC travel card on https://ttp.cbp.dhs.gov/
If you are not qualified for APEC travel card, you can apply for speedy immigration. It is free. But you can use immigration line alone with traveler with baby.
The catch for speedy immigration is you need to have at least 3 entries to Taiwan in past 12 months.

Has anybody else have had difficulty submitting a Taiwanese online arrival form? I've tried a few times, only to be met with:錯誤訊息系統錯誤請稍候再試!!
which Google Translate tells me means "Error message System error Please try again later!!"

I've not experienced issues, but I've only done the online arrival form twice.

Also, I just renewed my passport and have updated the information via the TTP. This information is supposed to be sent to NIA within two weeks. I'll report back if it has not updated. Has anyone else done a passport renewal through this program yet?

I checked the e-Gate site today, and my new passport information is reflected in the system. I don't have any planned trips to Taiwan until December, but everything seems to be in order. ^

Here’s hoping my new passport will work at e-Gate
 

Please report back. I'm curious since there have been no reported data points.

Just wanted to mention an experience I had recently regarding getting an ARC after already having eGate via global entry, in case it's helpful for anyone in a similar situation.

I originally applied for eGate via Global Entry and had no problems. A few months later, I got an ARC (Employment Gold Card). After receiving the card, I no longer had to fill out an arrival card when entering Taiwan, which I took advantage of for a few trips. Until yesterday, when I scanned my passport as usual and was prompted with an ugly message to fill out an arrival card. So I went through the normal immigration line and was advised to re-apply for eGate using my ARC, which is actually more convenient anyways since my passport doesn't scan half the time. I was able to do that at the airport immediately. However after doing so, when I attempted to scan the ARC the same message appeared, which is quite odd considering that ARC holders do not need to fill out the online arrival card. The immigration staff were puzzled by this and had me apply for eGate again, but the message still appeared.

So, the immigration staff's consensus was that this situation has caused a conflict in their system, and they've contacted an engineer to look into the issue. So just be warned that if you apply for "Global Entry" eGate, it may make eGate less convenient if you ever get an ARC. As a side note, applying for eGate with an ARC initially would be a much easier option if available since it can be done for free at the airport without an appointment.

Hello zackyg, and welcome to FlyerTalk! Thanks for sharing this situation. I don't anticipate getting an ARC myself, but hopefully if I am ever in that situation the system is fixed to allow for a change of status. I actually had a problem about a year ago because the ticketing agents at the JAL desk were looking for a recent entry stamp in my passport and thought I had an ARC after mentioning e-Gate. Hopefully the program is a little better known now than it was last fall shortly after it started.

Brand new passport first use | Still didn’t work
 

I'll report back in December in my case.

Do you think it is bad biometrics?

Length of application
 

If you are intending to use e-Gate for Global Entry, do you already have Global Entry?